Home / 209,691,547.20-314,679,038.40-73,378,111.68

Finding the Fourth Proportional to 209,691,547.20, 314,679,038.40 and 73,378,111.68

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Solution

The fourth proportional to 209,691,547.20, 314,679,038.40 and 73,378,111.68 is: 110,116,759.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,691,547.20 : 314,679,038.40 = 73,378,111.68 : x
  2. Step 2: Convert to fraction form
    209,691,547.20/314,679,038.40 = 73,378,111.68/x
  3. Step 3: Cross multiply
    209,691,547.20x = 314,679,038.40 × 73,378,111.68
  4. Step 4: Simplify right side
    209,691,547.20x = 23,090,553,623,070,208
  5. Step 5: Solve for x
    x = 23,090,553,623,070,208/209,691,547.20
  6. Step 6: Final answer
    x = 110,116,759.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.